Fixing plastic Adirondack chairs
I was curious, found this: https://weldwarehouse.com/cgi-bin/einstein.pl?::1:WLDWH:1:803=8237
Also this: https://makezine.com/2017/02/16/plastic-repair/
Or blue duct tape. 
I've also gone through a lot of these.....haven't found the solution myself other than to head to Home Depot to replace. They are very comfortable and durable, but don't last forever.
Try the gorilla clear glue in gel form. Let it cure for a couple of days. You can use the blue painter's tape to hold it together if needed.
It looks like there's not that much surface for glue to hold. How about adding a splint (or tape?) of some kind across the back?
mjc said:
It looks like there's not that much surface for glue to hold. How about adding a splint (or tape?) of some kind across the back?
One or two wooden supports across the back, if there is enough material that you can use screws through the chair into the wood.
Thanks for all of the good ideas- I'm going to try this stuff next: it supposed to set in a minute - cure in an hour. It says that it works with "Most plastics"- so we'll see.
Yes, good old Epoxy.
But, I found that Gorilla Glue, as posted above, invariably has worked when Crazy Glue did not. Faster, less messy and less work than Epoxy.
Epoxy is good (jamie's suggestion) but if the chair is made of ABS plastic (which is a very common type of plastic) then you can "weld" it using pure acetone. Search "welding ABS with acetone" on YouTube for many examples of this.
Gorilla Glue doesn't work. We have about 10 of these chairs with tables at our Lake house and they all eventually split, crack, etc. I tried every thing including Gorilla, Crazy, and any other glue, duct tape, etc. I now put a towel over chair to cover cracked part and "Forget about it". My husband saw the chairs for $12. at a local hardware store up at the lake house so when the towels wear out we will just spring for the new chair. Good luck and let me know if you have had any success with your repair efforts,
You can buy one of these for $300 once, or get the $15 ones 20 times.
There is no "repair" of the cheap ones.
I have accepted that I am a person who buys cheap lawn umbrellas every season for $25-$35, because I WILL leave them out during a storm. And the expensive ones don't hold up any better when they blow sideways.
We have cheap wood adirondacks from Ho Po that have been repaired, but they were wood. I guess I'm stuck in the middle about those.
JB - probably a better idea
The epoxy I mentioned above did not work - acetone sounds like a good choice.
The "plastic welding with heat" option seems the most likely to be successful to me.
Just bought four of these type of chair after doing a couple months of research into them (after seeing one for very cheap at Costco). Bought during the Memorial Day sale, buy 3 get one free, with free shipping. That sale seems to be over, but they still have a "special". They're not cheap, but are very comfortable, we like that the version we bought fold up nicely, and they have a relatively very long 20 yr residential warranty. We're expecting them to last for years.
Here are other brands/types at Costco.com for a bit less, but none are blue. (Costco has a different white chair in the stores now, for only $129.99 per chair. Made by "Leisure Line")
https://www.costco.com/CatalogSearch?dept=All&keyword=adirondak
pdg said:
Here are other brands/types at Costco.com for a bit less, but none are blue. (Costco has a different white chair in the stores now, for only $129.99 per chair. Made by "Leisure Line")
https://www.costco.com/CatalogSearch?dept=All&keyword=adirondak
Thank you for this. I ordered the polywood set that comes with the table. I guess it costs more than the white one in store but reviews are great and there’s also a 20 year warranty. Fingers crossed!
shh said:
Thank you for this. I ordered the polywood set that comes with the table. I guess it costs more than the white one in store but reviews are great and there’s also a 20 year warranty. Fingers crossed!
Simple repair: Drill a 3/8 inch hole at about the same distance to either side of the split and use a nylon wire tie (zip tie) to hold the split together. If the split is long, you might want to use a few parallel wire ties. The wire ties will last a season or two before they break, and will need replacement.
finally fixed my plastic chairs- no glues or epoxy worked - melding the plastic with a soldering iron may have done the trick - we’ll see if it holds.
Crazy glue isn’t the solution what do you guys think maybe a soldering gun?